Risk Assessment of Deployment and Recovery of Submarine Buoy System Based on Fuzzy Fault Tree

Aiming at the low success rate of submarine buoy deployment and recovery in marine environmental monitoring systems, this paper analyzes the potential risk sources in the process of submarine buoy system deployment and recovery combined with relevant literature and expert opinions. Based on the fuzzy fault tree analysis method, the relationship between the basic risk events and the deployment and recovery accidents of the submarine buoy system is obtained, and the possibility of accidents in the deployment and recovery process of the submarine buoy systems analyzed quantitatively. The occurrence probability and critical importance of each basic event are obtained, then the key risk sources in the deployment and recovery processes of the submarine buoy system are diagnosed, and the corresponding preventive measures are presented to improve the success rate of deployment and recovery. The simulation results showed that: 1) based on the fuzzy fault tree analysis method, the probability and key risk sources of the deployment and recovery accidents of the submarine buoy system can be obtained; 2) the basic events with a high probability are related to the deployment stage of submarine buoy system; 3) and the probability of basic events with a higher critical importance is also higher.